M38197 Mitsubishi, M38197 Datasheet - Page 13

• Manufacturer Part Number: M38197
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Fig. UA-3 Port block diagram (2)
Note: The dimmer signal sets the Toff timing.
: High-breakdown-voltage P-channel transistor
(5) Ports P3, P9
(6) Ports P4
(7) Ports P4
(8) Ports P4
0
2
6
, P4
–P4
, P4
5
4
7
, P6
, P6
2
1
, P6
3
Local data bus
INT
Data bus
Data bus
Data bus
0
, INT
1
interrupt input
Timer 1 output selection bit
Timer 3 output selection bit
Timer 6 output selection bit
(only P4
Zero cross
detection
circuit
input
Data bus
Timer 1 output
Timer 3 output
Timer 6 output
5
)
Port latch
Port latch
Direction
register
Direction
register
INT
CNTR
2
–INT
0
Dimmer signal
,CNTR
Port latch
4
interrupt input
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
1
(Note)
input
V
EE
3819 Group
13